The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2014
Filed:
Jun. 23, 2011
Applicant:
Eng Kian Kenneth Sng, Singapore, SG;
Inventor:
Eng Kian Kenneth Sng, Singapore, SG;
Assignee:
Vestas Wind Systems A/S, Aarhus N., DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/10 (2006.01); F03D 9/00 (2006.01); H02J 3/38 (2006.01); H02P 9/00 (2006.01);
U.S. Cl.
CPC ...
H02J 3/386 (2013.01); H02P 2009/004 (2013.01); Y02E 10/763 (2013.01);
Abstract
A method and apparatus of operating a controller usable for operating a wind turbine is provided. The wind turbine includes a voltage converter being connectable to a power grid via a filter arrangement. The method includes determining a line voltage and adding the determined line voltage to the output of the voltage converter with a time delay. The time delay is adjusted such that resonant effects occurring at the filter arrangement are decreased.